Keying device.



R. R. BOWERS.

KEYING DEVICE. APPLICATION FILED Nov. 6. 1916. l ,272,2Q0. Patented July 9, 1918.

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A)Spec'iicatioii of Inettersf-Pateiit.v

Paten-tee :July 9; 1918.

` 'Applicationled November 6:1916. Serial No. 129,856.

To all whom' t 'may `concern;l

VBe it knownv that I, ROBERT R.' iBowniis, a

citizen of the vUnited States, and a Aresident of Ottumwa-,inthe county offVVapello vand VState of 3Iowa, have inventedv certain ynew andus'eful Improvements in A*Keying vDevices, ofwhi'ch 'the following is a specification, reference being had.' to the accompanying drawings. l V j 'This invention relates to improvements in keying 'devices having a `special value inconnection with the securing of reel-heads on side-delivery rakes of the general type shown' in the 'LettersPatent to JOSGPhDain, No. 886,681, dated May 5, 1908, wherein is :embodied a' rotary reel .arranged atanangle to the line of draft and comprising two heads secured near opposite ends 'o'f acen- `tral shaft' that is suitably g-journaled iniia `lframe, the said -heads being connected together by teeth-carrying bars. The descriptionof the invention' will, therefore, be made Y Aat lines'B- andra-4, respectively,of "Fig: '1.

by reference` to such a structure. 'Such' rakes are ordinarily sent .out from the'factoryin .a dismantled or`knocked-downcondition and .frequentlyare sent by the dealer to the purchasing farmer 'in l.like condition.V Now it is essential 'for the best results v*when A the reel-heads. are secured in place upon the said centralshaft!l that the sockets or supports intendedfor the ends of,eachtooth-barshall be `,directly opposite -ceach other, ,whereby leach, of. such bars will be in -substantialpar- "allelisinvwith the shaft. Frequently, howeverthe farmer, Whois not experienced in .asseinbling.inachines,will fail to so secure the twolieads @in place,in the proper way, due tozthe'ftfactth'a'tthe said 'central shaft is "usually squarein cross-section and the reelheads .are of the three-armed construction, as shownin the said Dain patent. By reasonof thisconstruct-ion it islan easy matter for the heads to be so put on that the.v toothbars will not extend properly between them, as the sockets or bearings in the two heads will not be in alinement or directly opposite each other. When the bars are improperly put on, it follows that their arrangement causes an undue strain upon them when the reel revolves, with the result that the ma chine does not work to the best advantage and does not endure as long as should be the case. It is the object of my invention to so construct the reel-heads and the shaft to which they are attached that it will not fbe possibleto connect these parts-together iii anyy other than the" proper manner ,and itl is afurther object to provideimproved and simple secu-ring'ineans'ffor tightly clamping 'the heads' to the shaft after suchlheads have A'been `properly placed lin iposition :on -the shaft.` These objects -IA attain byy the means shown; in the drawings and hereinafter pa r- -ticularly described. T'liatwhichl believe to Vbe new-willlbe set"forth inthe xclaims.

l; longitudinal section* thehub portion of -each `head :and .certain driving and supporting parts connectedwith 'one of thelieads;

"F ig. 2 is a detailinflongitudinalsection Ythroughthe `reel-shaft'andthe hub :of one ofthe heads-showing my improvementsin" yconnection there-with gV and LFigs..v 3l and '4 `are transverse sectionsl taken Referring to jthe several-:figures of )the drawings,` ingwhich corresponding parts are indicated 'by the same reference characters :H

"21 indicates Va beveled gear that'is suitably' secured v'upon the forward end of a" l shaft. 22twhich', as shown,"is square-in crosssection. iSiiclr'shaft Aextends across the reel- 'frame from 4endftov end, and is supported .and driven'vin any suitablefmanner, preferably fas shown in Ysaid Dain patent. Near its forward end it g has secured to it, in the manner hereinafter 'describedfthe forward reel-head'23. y 'Upon `the extended hubs of such A'forward reel-head rand'the'beveledipin- "ion :21 is `mounted za sleeve24f'supported from the axle 'oftthe-rakein any usual "mann-ei',

the extended portions of the hubs of the said forward reel-head and pinion forming 1the bearing for the forward end of the shaft. The reel that has been referred to comprises the head 23 already mentioned, another head 26 adjacent to the rear end of the supporting frame, and a plurality of teeth-carrying bers 27-three in number, in the construction here shown-extending between and suitably connected to the heads. The wire raketeeth carried by these bars 27 are indicated by 28. Each reel-head is shown (see Figs. 3 and 4) as formed to provide three arm-like portions, and against the outer face of each arm of the inner head 23 will be secured two gears in the manner described in the said -Dain Patent No, 886,681 and well understood bylthose acquaintedl with this art, the outer one of each of the gears being made fast to one end of a tooth-bar 27. In mesh with the inner one of each of these three sets of gears is a Vgear 29 which is fast on,

and preferably formed integralrwith, the

sleeve 24.

v To insure each reel-head being always placed upon thel shaft 22, so that the proper Y bearings for each'tooth-bar are opposite each other, the shaft and the hub of each reelhead are formed so that one of such parts has a projection and the other part a recess yto receive such projection,-thereby rendering it impossible to put a reel-head on the shaft in any other position than one that will cause the projection to enter such recess. In the construction shown, the projection is vupon the shaft and is formed by passing a rivet through alined holes drilled in the walls of the hollow shaft, the hole in one `wall being countersunk to receive the rivets head and then heading over the projecting end of the rivet., The rivet is indicated by 0 and the head end thereof that forms the operative projection Vfor engagingthe recess is indicated by 31. The recess in the inner face of each reel-head hub is indicated by 32. For securely-clamping vthe reel-,head to the shaft, I employ an L- v by means easily accessible and removable.

, That which I claim as my invention, and

desire to secure by Letters Patent, is .1. The combination witha shaft `and a y member having a hubadapted to therecopies ef uns patentA may be obtained for on, said shaft having a 2rivet extending therethrough and secured therein and having a head projecting from theface ofthe shaft, the inner face 0fy the hub being recessed to receive said rivet-head, whereby the hub can only be placed on the shaft in a predetermined position.

2. The, combination with a shaft of a member having a hub adapted to lit thereon, said shaft having a rivet extending therethrough and secured therein and having a head projecting from the face of the shaft, the inner face of the hub being recessed to receive said rivet-head, whereby the hub can only be placed on the shaft in a predetermined position, and means for binding said shaft and hub closely together.

3. The combination with a shaft, a member having a hub adapted to fit thereon, and'means on the shaft `andhub forl interlocking such parts together, of a bolt passing through the hub and partially surrounding the shaft, and means for tightening the bolt to force the shaft and hub into close frictional contact.`

4. The combination with shaft, a member having a hub adapted to fit thereon, and means on the shaft and hub for interlocking such' parts together, of a bent bolt passing through the hub and partially surrounding I the shaft, and means for tightening the bolt to force the shaft andhub into close frictional contact` the bolt-hole in the hub being of considerably greater Width than the bolt to permit theinsertion and Vwithdrawal of such bent bolt.k

5. The combination with a shaft having ya plurality of faces and a member having a hub adapted to fit thereon and h aving a recess in one of its faces, of a rivet passed through two faces of the shaftand having 'I an end projecting'beyond one of` such faces .and entering the said -recessin-the hub, a

vbent bolt passing through the'hub and'in contact with two faceseof'the` shaft, and x means for tightening thebolt to` force said shaft into close frictional engagement, lthe hub having its lbolt-'hole enlarged to permit of the insertion and withdrawal of the bolt. i

five cents each', by'ad'dre'ssng tbe-Commissioner of Patents, Washington, D. C.

lRoianirr n. BowERs. Y 

